Alert archive / Montana / Musselshell County

Weather alerts in Musselshell County, Montana, 2017

75 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Musselshell County and its neighbors

Each county as a circle sized by its count in 2017. Tap one for its archive.

Alerts
75
Warnings
16
Watches
9
Advisories
20
Busiest month
July13 alerts
Busiest day
July 10, 20174 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Musselshell County, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings4250%333%5 min
Flash flood warnings00

Each office's whole area, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Billings, MT: severe thunderstorm warnings311552%5845%23 min
NWS Billings, MT: flash flood warnings110%1100%45 min

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

The alerts

Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 3, 2:31 PM MSTWind Chill AdvisoryBYZ45 hr
Jan 10, 3:48 AM MSTWinter Weather AdvisoryBYZ35 hr
Jan 29, 2:51 PM MSTWinter Storm WatchBYZ13 hr
Jan 30, 3:50 AM MSTWinter Weather AdvisoryBYZ54 hr
Feb 6, 5:16 PM MSTSpecial Weather StatementBYZ119 min
Feb 6, 7:14 PM MSTSpecial Weather StatementBYZ2 hr
Feb 7, 4:13 AM MSTWinter Weather AdvisoryBYZ24 hr
Feb 9, 5:50 AM MSTSpecial Weather StatementBYZ85 min
Feb 9, 7:40 AM MSTFreezing Rain AdvisoryBYZ8 hr
Feb 10, 11:57 AM MSTAreal Flood AdvisoryBYZ48 hr
Feb 12, 11:50 AM MSTAreal Flood AdvisoryBYZ24 hr
Feb 22, 1:44 PM MSTWinter Weather AdvisoryBYZ44 hr
Feb 24, 6:16 AM MSTSpecial Weather StatementBYZ89 min
Feb 24, 7:53 AM MSTSpecial Weather StatementBYZ112 min
Mar 1, 5:37 PM MSTSpecial Weather StatementBYZ113 min
Mar 1, 8:43 PM MSTWinter Weather AdvisoryBYZ9 hr
Mar 2, 6:05 AM MSTWinter Weather AdvisoryBYZ4 hr
Mar 7, 3:21 PM MSTWinter Storm WatchBYZ24 hr
Mar 8, 4:41 AM MSTWinter Storm WarningBYZ57 hr
Mar 8, 3:24 PM MSTWinter Weather AdvisoryBYZ53 hr
Mar 22, 7:23 AM MDTSpecial Weather StatementBYZ112 min
Mar 22, 6:15 PM MDTSpecial Weather StatementBYZ45 min
Mar 22, 7:18 PM MDTSpecial Weather StatementBYZ27 min
Apr 4, 2:36 AM MDTSpecial Weather StatementBYZ84 min
Apr 4, 5:37 AM MDTSpecial Weather StatementBYZ53 min
Apr 4, 6:34 AM MDTSpecial Weather StatementBYZ71 min
Apr 8, 3:07 PM MDTWinter Weather AdvisoryBYZ42 hr
Apr 17, 4:09 PM MDTSpecial Weather StatementBYZ81 min
May 7, 4:46 PM MDTSevere Thunderstorm WarningBYZ41 min
May 7, 5:15 PM MDTSpecial Weather StatementBYZ45 min
May 7, 5:35 PM MDTMesoscale DiscussionSPC2 hr
Jun 12, 2:45 PM MDTSevere Thunderstorm WatchSPC7 hr
Jun 12, 6:00 PM MDTMesoscale DiscussionSPC90 min
Jun 12, 8:56 PM MDTSpecial Weather StatementBYZ34 min
Jun 26, 3:53 PM MDTMesoscale DiscussionSPC3 hr
Jul 6, 5:43 PM MDTSevere Thunderstorm WarningBYZ62 min
Jul 9, 3:45 PM MDTFire Weather WatchBYZ12 hr
Jul 9, 4:05 PM MDTSevere Thunderstorm WarningBYZ55 min
Jul 10, 3:30 AM MDTRed Flag WarningBYZ17 hr
Jul 10, 1:20 PM MDTMesoscale DiscussionSPC115 min
Jul 10, 2:59 PM MDTSpecial Weather StatementBYZ46 min
Jul 10, 3:43 PM MDTSpecial Weather StatementBYZ47 min
Jul 15, 3:09 AM MDTFire Weather WatchBYZ12 hr
Jul 15, 2:48 PM MDTRed Flag WarningBYZ33 hr
Jul 16, 2:36 PM MDTSpecial Weather StatementBYZ39 min
Jul 16, 2:36 PM MDTMesoscale DiscussionSPC114 min
Jul 16, 3:19 PM MDTSpecial Weather StatementBYZ41 min
Jul 20, 3:17 AM MDTRed Flag WarningBYZ42 hr
Aug 1, 6:38 PM MDTSpecial Weather StatementTFX52 min
Aug 1, 7:45 PM MDTSpecial Weather StatementBYZ45 min
Aug 1, 8:45 PM MDTSpecial Weather StatementBYZ30 min
Aug 1, 9:02 PM MDTSevere Thunderstorm WarningBYZ28 min
Aug 16, 3:09 AM MDTFire Weather WatchBYZ12 hr
Aug 16, 2:44 PM MDTRed Flag WarningBYZ30 hr
Sep 1, 2:29 PM MDTFire Weather WatchBYZ24 hr
Sep 2, 2:50 PM MDTRed Flag WarningBYZ54 hr
Sep 7, 2:15 PM MDTRed Flag WarningBYZ30 hr
Oct 19, 2:27 PM MDTRed Flag WarningBYZ30 hr
Oct 20, 5:47 PM MDTSpecial Weather StatementBYZ118 min
Oct 21, 3:11 AM MDTHigh Wind WarningBYZ47 hr
Oct 23, 3:04 PM MDTFire Weather WatchBYZ24 hr
Oct 24, 3:01 PM MDTRed Flag WarningBYZ36 hr
Nov 2, 2:19 PM MDTWinter Storm WarningBYZ49 hr
Nov 3, 3:36 AM MDTWinter Weather AdvisoryBYZ36 hr
Nov 3, 4:07 AM MDTSpecial Weather StatementBYZ83 min
Nov 4, 10:35 PM MDTDense Fog AdvisoryBYZ10 hr
Nov 5, 2:50 AM MSTWinter Weather AdvisoryBYZ33 hr
Nov 11, 5:13 AM MSTWinter Weather AdvisoryBYZ7 hr
Dec 5, 10:56 PM MSTSpecial Weather StatementTFX3 hr
Dec 19, 3:18 PM MSTWinter Weather AdvisoryBYZ36 hr
Dec 21, 3:08 PM MSTWinter Weather AdvisoryBYZ39 hr
Dec 23, 5:57 AM MSTWinter Weather AdvisoryBYZ29 hr
Dec 27, 4:04 AM MSTWinter Storm WatchBYZ24 hr
Dec 27, 4:04 AM MSTWinter Storm WarningBYZ3 days
Dec 30, 3:38 PM MSTWind Chill AdvisoryBYZ18 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20162018

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.